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  4. Mouse Lymphocyte activation gene 3 protein(LAG3) ELISA kit

Mouse Lymphocyte activation gene 3 protein(LAG3) ELISA kit

  • 中文名称：
    小鼠淋巴细胞活化基因3蛋白(LAG3)酶联免疫试剂盒
  • 货号：
    CSB-EL012719MO
  • 规格：
    96T/48T
  • 价格：
    ￥3600/￥2500
  • 其他：

产品详情

  • 产品描述：

    This mouse LAG3 ELISA kit employs the quantitative sandwich enzyme immunoassay technique to measure the levels of mouse LAG3 in multiple samples, including serum, plasma, or tissue homogenates. It also uses the enzyme-substrate chromogenic reaction to visualize and analyze the analyte levels through the color intensity. The intensity of the colored product is in direct proportion to the LGA3 levels in the sample and is measured at 450 nm through a microplate reader.

    LAG3 is mainly expressed in activated T and natural killer (NK) cells and was identified as a marker for the activation of CD4+ and CD8+ T cells. Under pathological conditions, such as chronic inflammation or tumor environment, increased LAG3 expression on T cells was observed in combination with other inhibitory receptors such as PD-1, T cell immunoglobulin, and TIGIT, TIM3, CD160, 2B4, which finally led to T cell dysfunction. LAG3 is an important immune checkpoint with relevance in cancer, infectious disease, and autoimmunity. Furthermore, LAG3 was mainly found on tumor-infiltrating Tregs in many types of cancer when compared with non-malignant peripheral cells.

  • 别名：
    Lag3 ELISA Kit; Lymphocyte activation gene 3 protein ELISA Kit; LAG-3 ELISA Kit; Activation-induced cytidine deaminase-linked autoimmunity protein ELISA Kit; Aida ELISA Kit; CD antigen CD223) [Cleaved into: Secreted lymphocyte activation gene 3 protein ELISA Kit; sLAG-3)] ELISA Kit
  • 缩写：
  • Uniprot No.：
  • 种属：
    Mus musculus (Mouse)
  • 样本类型：
    serum, plasma, tissue homogenates
  • 检测范围：
    1.25 ng/mL-80 ng/mL
  • 灵敏度：
    0.31 ng/mL
  • 反应时间：
    1-5h
  • 样本体积：
    50-100ul
  • 检测波长：
    450 nm
  • 研究领域：
    Immunology
  • 测定原理：
    quantitative
  • 测定方法：
    Sandwich
  • 精密度：
    Intra-assay Precision (Precision within an assay): CV%<8%
    Three samples of known concentration were tested twenty times on one plate to assess.
    Inter-assay Precision (Precision between assays): CV%<10%
    Three samples of known concentration were tested in twenty assays to assess.
  • 线性度：
    To assess the linearity of the assay, samples were spiked with high concentrations of mouse LAG3 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
    SampleSerum(n=4)
    1:5Average %93
    Range %89-97
    1:10Average %104
    Range %98-107
    1:20Average %91
    Range %84-94
    1:40Average %99
    Range %94-102
  • 回收率：
    The recovery of mouse LAG3 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
    Sample TypeAverage % RecoveryRange
    Serum (n=5) 9085-95
    EDTA plasma (n=4)9588-98
  • 标准曲线：
    These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
    ng/mlOD1OD2AverageCorrected
    802.859 2.745 2.802 2.694
    402.042 2.078 2.060 1.952
    201.133 1.112 1.123 1.015
    100.663 0.643 0.653 0.545
    50.372 0.382 0.377 0.269
    2.50.275 0.281 0.278 0.170
    1.250.184 0.178 0.181 0.073
    00.109 0.107 0.108
  • 数据处理：
  • 货期：
    3-5 working days

产品评价

靶点详情

  • 功能：
    Lymphocyte activation gene 3 protein: Inhibitory receptor on antigen activated T-cells. Delivers inhibitory signals upon binding to ligands, such as FGL1. FGL1 constitutes a major ligand of LAG3 and is responsible for LAG3 T-cell inhibitory function. Following TCR engagement, LAG3 associates with CD3-TCR in the immunological synapse and directly inhibits T-cell activation. May inhibit antigen-specific T-cell activation in synergy with PDCD1/PD-1, possibly by acting as a coreceptor for PDCD1/PD-1. Negatively regulates the proliferation, activation, effector function and homeostasis of both CD8(+) and CD4(+) T-cells. Also mediates immune tolerance: constitutively expressed on a subset of regulatory T-cells (Tregs) and contributes to their suppressive function. Also acts as a negative regulator of plasmacytoid dendritic cell (pDCs) activation. Binds MHC class II (MHC-II); the precise role of MHC-II-binding is however unclear.; May function as a ligand for MHC class II (MHC-II) on antigen-presenting cells (APC), promoting APC activation/maturation and driving Th1 immune response.
  • 基因功能参考文献：
    1. upregulated in the central nervous system by intraepithelial lymphocytes from the gut epithelium of myelin oligodendrocyte glycoprotein(35-55)-specific T-cell receptor transgenic mice PMID: 27198196
    2. thi study shows that LAG-3 directly modulates the size of the T cell response and support the use of LAG-3 blockade regimens to enhance CD8+ T cell responses PMID: 27206765
    3. Study suggests that expression of the inhibitory receptors PD-1 and LAG-3 on CD4(+) T cells and their reduced IL-2 production are common characteristic features of Plasmodium infection. PMID: 26696540
    4. An IL-27/Lag3 axis enhances Foxp3+ regulatory T cell-suppressive function and therapeutic efficacy. PMID: 26013006
    5. LAG3 and PD1 co-inhibitory molecules have roles in collaborating to limit CD8+ T cell signaling and dampen antitumor immunity in a murine ovarian cancer model PMID: 26318293
    6. Poxvirus-Based Active Immunotherapy with PD-1 and LAG-3 Dual Immune Checkpoint Inhibition Overcomes Compensatory Immune Regulation, Yielding Complete Tumor Regression in Mice. PMID: 26910562
    7. Lymphatic endothelial cells (LECs) serve as an antigen reservoir for CD4 T-cell tolerance, and MHC-II molecules on LECs are used to induce CD8 T-cell tolerance via LAG-3. PMID: 25857745
    8. LAG-3 expression on Tconv cells makes them more susceptible to Treg based suppression, and also regulates the development of a TH1 T-cell response. PMID: 25372844
    9. LAG-3 exerts an important regulatory effect on autoimmunity. PMID: 25122007
    10. Lag-3 is an important regulatory molecule involved in alloreactive T cell proliferation and activation after bone marrow transplantation. PMID: 24475140
    11. these results define a strong synergy between the PD-1 and LAG-3 inhibitory pathways in tolerance to both self and tumor antigens. PMID: 22186141
    12. We conclude that LAG-3 is necessary for regulating CD4(+) and CD8(+) T cell function during autoimmune diabetes PMID: 21873518
    13. LAG-3 is required for long-term peripheral CD8 but not CD4 T-cell tolerance and this requirement is CD8 cell-extrinsic. PMID: 21422469
    14. LAG-3 acts synergistically with PD-1 and/or other immunoregulatory genes to prevent autoimmunity in mice. PMID: 21300912
    15. This significant intracellular storage of LAG-3 appears to facilitate its rapid translocation to the cell surface following T-cell activation, which was much faster for LAG-3 than CD4 PMID: 20391435
    16. blockade of LAG-3 did not rescue cytokine production by virus-specific CD8 T cells and did not alter the virus titer in various organs PMID: 19880580
    17. Lag3 inhibits CD4-dependent, but not CD4-independent, T cell function via its cytoplasmic domain. PMID: 12421911
    18. LAG-3 regulates the expansion of activated T cells. PMID: 12672063
    19. LAG-3 activates antigen-presenting cells through MHC class II signalling, leading to increased antigen-specific T-cell responses in vivo. PMID: 14644131
    20. data suggest that LAG-3 negatively regulates T cell expansion and controls the size of the memory T cell pool PMID: 15100286
    21. LAG-3 marks regulatory T cell populations and contributes to their suppressor activity PMID: 15485628
    22. LAG-3 is cleaved within the D4 transmembrane domain connecting peptide into two fragments that remain membrane associated. Modulation of LAG-3 cleavage may contribute to the function of this key regulatory T cell protein. PMID: 15557174
    23. LAG-3 negatively regulates T cell homeostasis by regulatory T cell-dependent and independent mechanisms. PMID: 15634887
    24. LAG-3 is a new marker of T cell induced B cell activation. PMID: 15971272
    25. Metalloprotease-mediated cleavage of LAG-3 controls T-cell proliferation and immune response. PMID: 17245433
    26. Data demonstrate a direct role for LAG-3 on CD8+ T cells and suggest that LAG-3 blockade may be a potential cancer treatment. PMID: 17932562
    27. a novel ITAM-mediated inhibitory signaling pathway in DCs triggered by MHC II engagement of LAG-3, providing a molecular mechanism in which regulatory T cells may suppress via modulating DC function. PMID: 18424711
    28. LAG-3 plays an important but selective cell intrinsic and cell extrinsic role in plasmacytoid dendritic cells biology PMID: 19201841
    29. signaling through the PD-1 and LAG-3 pathways have distinct functional consequences to CD8 T cells under tolerizing conditions PMID: 19454660

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  • 亚细胞定位：
    [Lymphocyte activation gene 3 protein]: Cell membrane; Single-pass type I membrane protein.; [Secreted lymphocyte activation gene 3 protein]: Secreted.
  • 组织特异性：
    Primarily expressed in activated CD4(+) and CD8(+) T-cells. Also expressed in a subset of regulatory T-cells (Tregs), such as natural CD4(+)CD25(+) Tregs. Also expressed on plasmacytoid dendritic cells (pDCs).
  • 数据库链接：

    KEGG: mmu:16768

    STRING: 10090.ENSMUSP00000032217

    UniGene: Mm.4528